Charging apparatus for blast-furnaces.



PATENTED NOV. 15, 1904.

K. SCHNEIDER. CHARGING APPARATUS FOR BLAST FURNACES.

APPLICATION FILED DEC. 7, 1903.

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No. 774,788. PATENTED NOV. 15, 1904.

' A K. SCHNEIDER.

CHARGING APPARATUS FOR BLAST FURNACES.

APPLICATION FILED DEC. 7, 1903.

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PATENTED NOV. 15, 1904.

APPLICATION FILED 13110.7. 1903.

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HOIODEL.

Patented November 15, 1904.

KARL SCHNEIDER, OF KOBLENZ, GER

MANY.

CHARGING APPARATUS FOR BLAST-FURNACES.

SPECIFICATION forming part of Letters Patent No. 774,788, dated November15, 1904.

Application filed December 7, 1903. Serial No. 184,176.

To all whom, it Wtuty concern.-

Be it known that 1, KARL SCHNEIDER, engineer, a subject of the Emperorof Austriau ngary, residing at 6 Rheinzollstrasse, Koblenz, Germany,have invented a certain new and useful Improvement in Charging Apparatusfor Blast-Furnaces; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

In blast-furnaces with inclined skip-hoists the great disadvantagearises that if the hoist gets out of order the charging of the furnacecan only be effected with the greatest difficulty. It has therefore beenproposed to arrange the entire inclined lift to be capable of lateraldisplacement, so that when it gets out of order it can be moved to oneside and the furnace be fed by the movable lift apparatus of an adjacentblast-furnace.

The present invention consists in obviating the said disadvantage byconnecting the furnace-tops of two contiguous furnaces by means of aconveying device, by means of which the ores and other materials can beconveyed from the mouth of a furnace whose hoist is in working order toa contiguous furnace whose hoist is out of order. For this purpose theremay be employed a bucket suspended from atraveling crane that can be runover the tops of both furnaces, which receptacle can be lowered into thehopper of each furnace. The materials are dumped by the hoist into thisbucket, which is then lifted by the traveling crane and run by same tothe mouth of the furnace Whose hoist is out of order. According toanother arrangement the feeding-hoppers of the blast-furnaces arethemselves made transportable. This arrangement is shown on theaccompanying drawings, in whioh- Figure 1 shows a sectional sideelevation, and Fig. 2 asectional front elevation. Fig. 3 represents inelevation two furnaces, a bridge, a runway on the bridge, and a movablereceptacle on the runway, the arrangement being such that either of thefurnaces can be supplied from the inclined skip-hoist of the other bymeans of the said movable receptacle.

The closing device of the furnace-mouth (No model.

here shown is a Parry hopper a; but any other closing device isapplicable. Above this hopper is provided an arched plate 6, serving assecond gas-seahwhich is'caused by counterweights 0 to bear against apacket-ring. These parts of the closing apparatus are fixed to thefurnace-mouth. On the other hand, the upper charging-hopper cl, intowhich the skip a of the hoist discharges its contents, is madetransportable. This hopper is closed by a bell f by means of anelectrically-actuated winch and balance-weight, which devices are alsoarranged on the transporting apparatus. The charging-hopper is thereforea movable part of the furnace-top.

With two contiguous blast-furnaces there may be arranged a line of railsg, extending over both furnaces, on which the charginghopper describedabove can be run by means of suitable driving-gear. By this means it ispossible to feed a blastfurnace by means of the hoist of a contiguousfurnace, the charging-hopper cZ being run with its charge from thefurnace whose hoist is in working order to the furnace Whose hoist isout of order, and when arrived there the bell f is lowered and inpressing down the gas-seal 6 (which is only held closed bybalance-weights) discharges the contents of the hopper on the main bell72, of the furnace-mouth. When the bellfof the charging-hopper d israised again, the gas-seal bfollows, actuated by its counterweights upto its closing position. The bell f being closed again, thecharging-hopper is moved back to its position over the firstblast-furnace.

The apparatus can also be arranged as a truck instead of as a travelingcrane. Instead of filling the bucket by the skip-hoist of an adjacentfurnace it may also be filled by means of ordinary charging-barrows atan adjacent furnace or at a suitably-arranged vertical hoist. With thedescribed arrangement it is also possible to have a charging-hopper suchas described in reserve for several blast-furnaces.

Having thus described the nature of my said invention and the best meansI kn ow of carrying the same into practical effect, I claim 1. Thecombination with adjacent blast-furnaces, of apparatus adapted to supplyboth of said furnaces from a single hoist, said apparatus consisting ofa combined charging-receptacle and conveyer receiving the charge ofmaterial from the hoist and normally occupying a position above the topof one of the furnaces, and a runway for said receptacle-conveyerleading to a corresponding position above the top of the other furnace;substantially as described.

2. The combination with adjacent blast-furnaces, whose tops are providedwith double gas-seals, of apparatus adapted to supply both of saidfurnaces from a single hoist, said apparatus consisting of a wheeledtruck, a hopper suspended therefrom, a bottom bell for said hopper, andlowering and raising gear for the bottom bell, said hopper receiving thecharge of material from the hoist and normally occupying a positionabove the top of one of the furnaces, and a runway for the hopper-truckleading to a corresponding position above the top of the other furnace;substantially as described.

3. A blast-furnace plant, comprising two blast-furnaces, a runwayleading from the top of one furnace to the top of the other, a skiphoistfor each furnace, and a charging-conveyer upon said runway adapted toreceive its charge from either hoist and discharge it into the top ofeither furnace; substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

KARL SCHNEIDER. l/Vitnesses:

VVILHELu RUPPERS, GUSTAV E. GRIER.

